Numbers beginning with 615-967

Smyrna, a town in Rutherford County, Tennessee. Smyrna's population was 39,974 at the 2010 census. In 2007 U.S. News & World Report listed Smyrna as one of the best places in the United States to retire. source

Area codes 615 and 629 are area codes in Tennessee serving Nashville (Davidson County) and the 12 surrounding counties. 615 is the main area code, while 629 is an overlay covering the same area that will begin service in 2014. Besides Nashville, Murfreesboro, Franklin, Hendersonville, and Lebanon are other major cities in the 615/629 service territory. source